nginx statistics in multi-workers

1. 从网上下载多进程统计补丁。https://github.com/arut/nginx-patches

2. Copy补丁文件per-worker-listener到nginx代码目录下。如 ginx-1.7.2

3. 打补丁：patch -p1 < per-worker-listener

4. make &make install

5. 修改配置文件：

daemon on;
master_process on;
worker_processes 5;

events{
worker_connections 1024;
accept_mutex off;
}

#HTTP
http{

   upstream redis_pool {
        server localhost:6379;
        keepalive 1024 single;
    }

    server {
        listen 8080;
        listen 10000 per_worker;//第一个worker从10000开始

}

6. 运行Nginx，并测试：